1.I don't know _____ he will be back home.A.who B.what C.when D.where2.Could you tell me ______?A.where do you live B.who you are waiting forC.who were you waiting for D.where you live in3.Do you still remember ______?A.that he said B.what he said C.did he say that D.what did he say4.I can't understand ______the boy alone.A.why she left B.why did she leave C.why she had left D.why had she left5.She told me the sun ______ in the east.A.rise B.rose C.rises D.had risen6.They tried to find out ______ the new train ______.A.how far/ had gone B.how long/ has goneC.how far/ went D.how far had/ run7.The manager came up to see ______.A.what was the matter B.what the matter wasC.what the matter is D.what's the matter8.Can you tell me ______?A.where are you doing B.where do you studyC.where you were doing D.where yu study9.I can't understand ______ the boy alone.A.why she let B.why did she leave C.why had she left D.why she had left10.He asked his father ______.A.where it happens B.where did it happenC.how it happened D.how did it happen11.No one tells us______,so we need your help.A.how we should do B.what should we doC.how to do it D.what to do it12.Could you please teach me ______ the computer.A.how check B.to check C.how to check D.to how checking13.______ he'll come or not isn't important.A.Why B.If C.Whether D.What14.Would you like to know ______they will do it or not.A.if B.that C.whether D.why15.─Where do you think _____ he ____ the TV set?─ Sorry,I've no idea.A./,bought B.has,bought C.did,buy D.did bought16.Our homework has changed a lot.Who can tell _____ it would be like in _____ five years.A.how,another B.what,more C.how ,other D.what,another17.─ Could you tell me ______?─ Yes.He ____ to the USA..where is he/ has been B.where he is/ has goneC.where was he/ has been D.where he was/ has gone18.─Mike wants to know if ____ a picnic tomorrow.─Yes.But if it ______,we'll visit the museum instead.A.you have/ will rain B.you will have/ will rainC.you will have/ rains D.will you have/ rains19.I don't know if he ______tomorrow.If he ______,I'll meet him.A.will come/ comes es/ comes C.will come/ will come es/ will come20．I really don't know if she ______ it when she ______.A.finds/ arrives B.finds/ will arrive C.will find/ will arrive D.will find/ arrives处理提问